Brood Monitor

1. About this manual

This manual covers the BeePrecise Brood Monitor: setting it up, placing it in the hive, connecting it in the app, looking after it, and what to do when something goes wrong. Read the safety section before you start.

2. Safety

!

WARNING. Chemical burn hazard. Keep coin cells away from children.

A swallowed coin cell can cause severe or fatal internal burns in as little as 2 hours. Keep new and used cells out of reach of children. If you think a cell has been swallowed or placed inside any part of the body, get medical help immediately.

• Use only a CR2032 coin cell.
• Fit the cell + side up.
• Do not short, heat, crush, open or recharge a cell.
• Remove a used cell straight away. Take it to a battery collection point, out of reach of children.
• If the case does not close fully, do not use it. Keep it away from children and contact us.
• Do not open or handle the Brood Monitor in rain.
• Do not press the buttons on the board marked FACTORY or RESET.

3. What it is

The Brood Monitor lies on the top bars of the brood box, over the brood. Day and night, it keeps track of how warm and humid the brood nest is and how the colony sounds. The app shows you how the colony is doing without opening the hive.

Parts: lid with its lip, base with the switch slot (ON and OFF marked beside it), board, switch, coin-cell holder, green light, FACTORY and RESET buttons (do not press).

In the box: Brood Monitor, quick-start guide.
You also need: a CR2032 coin cell (not included), an Android phone with Bluetooth, and the sign-in details we send you.

Do steps 4 and 5 at a table, indoors, where a problem is easy to find. Section 6 is at the hive.

4. Get the Brood Monitor ready

4.1 Open it

1. Hold the base down with one hand.
2. Lift the lid by its lip. It is a tight fit. Use your fingers only.
3. Lift the board out.

4.2 Fit the coin cell

1. Hold the cell flat, + side up.
2. Slide it in from the open side of the holder, under the metal clip, until it sits fully in the holder.

4.3 Switch on

Slide the switch towards ON. ON is marked on the board and on the base.

You should see one green blink. That means it is on and its checks have passed. Anything else: see section 9.

4.4 Close it

1. Lower the board in, with the switch at its slot.
2. Press around the edge of the lid until there is no gap.

Lid won't close? The board is the wrong way round. Lift it out and turn it so the switch is at the slot. Never force the lid.

5. Set up the app and pair

5.1 Get the app

1. Install BeePrecise from Google Play.
2. Sign in with the email and password we send you.

5.2 Add your apiary and hive

1. Name your apiary. Add its location if you like, then tap Continue.
2. Tap Add hive. Name the hive, pick the bee species and tap Continue.

Add one hive for each Brood Monitor.

5.3 Start pairing

1. Turn on Bluetooth. Allow the app to use it when asked.
2. On Hive added, tap Add Brood Monitor.
3. Tap Pair Brood Monitor.

5.4 Pick your Brood Monitor

1. The app lists nearby Brood Monitors. Hold the phone next to yours and tap the one with the strongest signal, the number closest to zero.
2. Keep the phone close until it finishes.

You should see the hive's page.

Screens may change with app updates.

6. Place it in the hive

1. Take it to the hive you added in 5.2 and open the brood box.
2. Lay the Brood Monitor flat across the top bars, over the middle of the brood. Either end can face the front.
3. Check no bees are under it, then close the hive.

Hives differ. On any hive, aim for the top bars of the brood box, over the middle of the brood.

7. Day to day

7.1 Sync at each visit

The Brood Monitor keeps recording between visits. When you visit, open the hive in the app and tap Sync now with the phone near the hive. No mobile network at the hive? The app keeps the readings and sends them when your phone is back online.

7.2 The first days

Over the first days, BeePrecise learns what is usual for the colony. Until then the hive shows Not enough data. That is normal.

7.3 Moving it to another hive

The app cannot move a Brood Monitor to another hive yet. Keep each one in the hive it was paired to. If you need to move one, contact us.

8. Care and coin cell

8.1 Cleaning

Wipe off propolis gently. Do not use water or chemicals.

8.2 Changing the coin cell

The app tells you when the coin cell needs changing.

1. Take the Brood Monitor out of the hive and bring it indoors.
2. Open it and lift out the board (4.1).
3. Slide the old cell out. Take it to a battery collection point, out of reach of children.
4. Fit a new CR2032, + side up (4.2). Switch on and check for one green blink (4.3).
5. Close it (4.4) and put it back in the same hive.

No other steps are needed.

8.3 If it gets wet

Take the coin cell out and let the Brood Monitor dry naturally. Do not use heat. It is not waterproof.

8.4 Damage or a leaking cell

Case cracked or gapping, or a cell leaking? Take the cell out without touching any fluid. If fluid gets on skin or in the eyes, rinse with water and get medical help. Stop using the Brood Monitor and contact us.

9. Error guide

9.1 The green light

Light after switching on	What it means	What to do
One green blink	On, checks passed	Carry on.
No light	No power	See No blink below.
Any other pattern	A check failed	Switch off, check the cell, switch on again. Still not one blink: contact us.

9.2 Problems and fixes

Problem	Likely cause	What to do
No blink	Cell upside down, not fully in, or flat	1. Check + side up. 2. Slide the cell fully into the holder. 3. Try a new CR2032. 4. Still nothing: contact us.
Lid won't close	Board the wrong way round	Lift the board out, turn it so the switch is at the slot, close again. Never force the lid.
Not found in the app	Too far, Bluetooth off, or not switched on	1. Hold the phone next to it. 2. Check Bluetooth is on. 3. Check it gives one green blink when switched on. 4. Try again.
Several Brood Monitors in the list	Others nearby	Tap the one with the strongest signal, the number closest to zero, with your phone next to it.
Sync stops part-way	Phone moved away	Stay close and tap Sync now again.
Not enough data	First days, or no recent sync	Sync at your next visit. In the first days this is normal.
Readings look wrong	A worn device or sensor	Contact us.
Stopped working	Many possible causes	Check the coin cell first (see No blink). Then contact us.

9.3 Never

• Press FACTORY or RESET on the board.
• Solder, bend the cell clip or change anything on the board.

10. Help

Email hello@beeprecise.io. Tell us which hive it is in, what the green light does, what the app shows, and send a photo if you can.

11. Specifications

Size	83.2 x 38.5 x 9.5 mm
Power	One CR2032 coin cell
Connection	Bluetooth to the BeePrecise app on your phone
Measures	Brood-nest temperature, humidity and sound

12. Document history

Version	Date	Change
1.0	November 2026	First release